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公开(公告)号：KR1019940001849B1
公开(公告)日：1994-03-09
申请号：KR1019910007017
申请日：1991-05-01
Applicant: 한국화학연구원
IPC: C07C69/54
Abstract: The method producing methyl metacrylate or ethyl metacrylate continuosly and recovering non-reaction metacrylic acid and alcohols. Metacrylic acid is synthesized by gas-phase catalytic oxidizing at least one compound of isobutylene, t-butanol and metacrolein. In manufacturing metacrylic acid ester with metacrylic acid, alcohol and solid-acid catalyst, the reaction temp is 60-130 deg.C, and pressure is 0-30 psig. A fluidized bed catalyst reactor is used for continuous production. Mixing solvents selected from aromatics such as ethylbenzene, xylene and cumene and from aliphatic such as nonane, decane, decaline and tetraline are used as esterification solvent. The above solid-acid catalyst are porous polystyrene base cation exchange resin and fluorine base cation exchange resin.
Abstract translation: 连续制造甲基丙烯酸甲酯或甲基丙烯酸乙酯的方法，回收非反应的甲基丙烯酸和醇。 甲基丙烯酸通过气相催化氧化至少一种异丁烯，叔丁醇和甲基丙烯醛化合物合成。 在用甲基丙烯酸，醇和固体酸催化剂制备甲基丙烯酸酯时，反应温度为60-130℃，压力为0-30psig。 流化床催化反应器用于连续生产。 作为酯化溶剂，使用选自芳族化合物如乙苯，二甲苯和枯烯的混合溶剂和来自脂肪族如壬烷，癸烷，十氢萘和四氢萘的混合溶剂。 上述固体酸催化剂是多孔聚苯乙烯基阳离子交换树脂和氟碱阳离子交换树脂。
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Patent Agency Ranking
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公开(公告)号：KR1019900004117B1
公开(公告)日：1990-06-16
申请号：KR1019880008101
申请日：1988-06-30
Abstract: A catalyst of formula Mo12Bi1FeaCobNicPbdSieAfDgOx [where A= at least one selected from a gp. of Cu, V, P, Te, Cr and Mn; D= at least one selected from a gp. of K, Rb, Ba, Mg and Ca; a=b=c=d 0.1 -6, e= 2.5- 15, f= 0.1-6, g= 0.05-5, x= bal. no. for producing methacrolein e.g. is prepd. by (a) dispersing silica powder into Mo and aq. soln. of the D, (b) co-pptg. with Fe, Co, Ni, Pb and aq. soln. of the A, (c) ripening after adding dild. HNO3-Bi soln., (d) spray-drying or evapg. to slurry state, (e) drying at below 100 deg. C, (f) calcining at 210 deg. C and molding, and (g) recalcining for 6 hr at 550 deg. C.
Abstract translation: 式Mo12Bi1FeaCobNicPbdSieAfDgOx的催化剂[其中A =至少一种选自gp。 的Cu，V，P，Te，Cr和Mn; D =从gp中选出的至少一个。 的K，Rb，Ba，Mg和Ca; a = b = c = d 0.1 -6，e = 2.5-15，f = 0.1-6，g = 0.05-5，x = bal。 没有。 用于制备甲基丙烯醛，例如 是prepd 通过（a）将二氧化硅粉末分散在Mo和水溶液中。 SOLN。 的D，（b）co-pptg。 与Fe，Co，Ni，Pb和aq。 SOLN。 的A，（c）添加胆汁后成熟。 HNO3-Bi溶胶，（d）喷雾干燥或蒸发。 （e）在100℃以下干燥。 （f）在210℃煅烧 并且（g）在550度下重新煅烧6小时。 C。
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公开(公告)号：KR100264966B1
公开(公告)日：2000-09-01
申请号：KR1019980005952
申请日：1998-02-25
Applicant: 한국화학연구원
IPC: B01J23/24
Abstract: PURPOSE: Disclosed are a complex metal oxide catalyst composed multiple metal elements and a preparing method of acrylic acid using the same. The catalyst has a composition form, Moa Vb Wc Pbd Cue Xf Yg (MhPMo12-i)jOk and the reaction for preparing acrylic acid is carried out under the reaction condition of low feed ratio of oxygen to acrolein and without a strong basic compound. CONSTITUTION: The complex metal oxide catalyst for preparing acrylic acid has a composition form, Moa Vb Wc Pbd Cue Xf Yg (MhPMo12-i)jOk, where X is one species of La, Ce, Sm, or Tl, Y is one species of Te, Sb, or Nb, M is Ce or Ru, and a, b, c, d, e, f, and g are atomic ratio values of respective elements. When a is 12, b, c, d, e, f, g, h, i, or j are 3-7, 1-6, 0.05-2, 0.5-4, 0.01-1, 0.01-1, 0-2, 0-3, and 0.01-0.2, respectively. And, silica, α-alumina, silicon carbide, or zirconium oxide may be used as a catalytic support. The preparation reaction of acrylic acid is carried out under the condition of temperature of 180-380deg.C, space velocity of 500-7000 h-1, feeding ratio of oxygen to acrolein of 0.5-2. Before the reaction, the catalyst is pre-treated at 200-450deg.C for 0.5-10 h in the mixed gas of acrolein, hydrocarbon such as propylene or methanol, and hydrogen.
Abstract translation: 目的：公开了一种复合金属氧化物催化剂和多种金属元素的制备方法和丙烯酸的制备方法。 催化剂具有组成形式，Moa Vb Wc Pbd Cue Xf Yg（MhPMo12-i）jOk和制备丙烯酸的反应在氧气与丙烯醛的低进料比和没有强碱性化合物的反应条件下进行。 构成：用于制备丙烯酸的复合金属氧化物催化剂具有组成形式，Moa Vb Wc Pbd Cue Xf Yg（MhPMo12-i）jOk，其中X是La，Ce，Sm或Tl的一种，Y是一种 Te，Sb或Nb，M是Ce或Ru，a，b，c，d，e，f和g是各元素的原子比值。 当a为12时，b，c，d，e，f，g，h，i或j为3-7,1-6,0.05-2,0.5-4,0.01-1,0.01-1,0- 2，0-3和0.01-0.2。 并且，可以使用二氧化硅，α-氧化铝，碳化硅或氧化锆作为催化剂载体。 丙烯酸的制备反应在180-380℃，空速500-7000h-1，氧气与丙烯醛的进料比为0.5-2的条件下进行。 在反应之前，将催化剂在丙烯醛，烃类如丙烯或甲醇和氢气的混合气体中，在200-450℃预处理0.5-10小时。
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公开(公告)号：KR100165620B1
公开(公告)日：1999-03-20
申请号：KR1019950009575
申请日：1995-04-24
Applicant: 한국화학연구원
Abstract: 본 발명은 사이클로헥센과 아세트산을 반응시켜 사이클로헥실아세테이트를 제조하는 방법에 있어서, 하기 일반식(1)의 헤테로폴리산 금속이온 염을 고체산 촉매로 사용하여 사이클로헥실아세테이프의 생산성을 향상시키는 방법에 관한 것으로, 상기 산촉매는 대상 반응계에서 활성이 장기간 유지되며, 반응물에 대한 용해도가 낮고, 활성이 감소하였을 때 쉽게 재생시킬 수 있다.
A
x H
nx SM
12 O
40 bH
2 O (I)
상기 식에서, A는 K 또는 C
s 이고,
x 는 0.1 내지 3 또는 4이고, n은 3 또는 4이고, S는 P 또는 Si 이고, M은 Mo 또는 W, 또는 이들의 조합이며, b는 0 내지 20이다.
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